RETIREMENT BENEFITS - Narrative (Details) $ in Thousands	12 Months Ended
Dec. 31, 2024 USD ($) employee	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Defined Contribution Plan Disclosure [Line Items]
Employer matching contributions \| $	$ 3,839	$ 3,346	$ 3,029
Number of employees	3,000
Entity number of employees, field personnel	2,200
Other Postretirement Benefits Plan
Defined Contribution Plan Disclosure [Line Items]
Contributions \| $	$ 18,507	$ 18,709	$ 18,847
Union Members
Defined Contribution Plan Disclosure [Line Items]
Number of employees	500
Number of employees, percent	20.00%

Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
-SubTopic 80
-Name Accounting Standards Codification
-Section 55
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480547/715-80-55-8

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 80
-Name Accounting Standards Codification
-Section 35
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480606/715-80-35-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 80
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480576/715-80-50-11

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 80
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480576/715-80-50-9

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration